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A298840 Number of nX7 0..1 arrays with every element equal to 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero. 1
0, 104, 2440, 60497, 3570731, 160441457, 7844725524, 380985444657, 18510417612668, 902275957883352, 43936865148320525, 2140933146128529606, 104313951368150470461, 5082784700709399173199, 247666770498486555848961 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A298841.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

..0..0..0..0..1..1..1. .0..0..0..0..1..1..1. .0..0..1..1..1..0..0

..0..1..1..0..1..1..1. .0..0..0..0..1..1..1. .0..0..1..1..1..0..0

..1..1..0..0..1..1..1. .0..0..0..0..1..1..1. .0..0..1..1..1..0..0

..1..0..0..0..1..1..1. .0..0..0..0..1..1..1. .0..0..1..1..1..0..0

CROSSREFS

Cf. A298841.

Sequence in context: A273224 A092714 A297977 * A298628 A281536 A250684

Adjacent sequences:  A298837 A298838 A298839 * A298841 A298842 A298843

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 27 2018

STATUS

approved

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Last modified November 25 08:57 EST 2020. Contains 338623 sequences. (Running on oeis4.)